Kigenkai, ichimei, Enri kenkonsho
Publisher: Rekisansho Fukkoku Kankōkai
Published: 1933
Place of publication: [Tokyo]
Language: jpn
Number of pages: 54
Subjects: Japanese Mathematics
Other titles: Enri kenkonsho
Notes: Written by Seki Takakazu. Cf. Leaf 54.

On double leaves, oriental style.